Flatiron and other heated apparatus



Oct, 13, 1935.` i LANDBERG 2,057,385

` FLATIRON AND OTHER HIATED APPARATUS lFiled May 11, 1955 2 sheersshee11 YJMGW I Qt. 13, 1936. v J, LANDB'ERG y 2,057,385

FLATIRON AND OTHER HEATED APFARATUS Filed May l1, 1955 2 Sheets-Sheet 2Patented Oct. 13, 1936 UNITED STATES ATENT orties FLATIRON AND OTHERHEATED APPARATUS Jhan Landberg, Alingsas, Sweden Application May 11,1935, Serial No. 21,027 In Sweden May 14, 1934 claims. (cl. 38496) 0porting legs which, by means of a manually operated device, areshiftable between supporting and inoperative positions. sition, the legsextend angularly fromv the flat iron and hold this at a safe distancefrom the underlying material. In the inoperativeposition, the legsextend in mutually opposite directions at a reasonable distance abovethe heating body. Y A v An especial advantage ofthe present invention isto enable the operator by a simple pressure with a iinger or preferablythe thumb to rest the fiat iron at maximum temperature at any placevwithout endangeringthe underlyinglmaterial.

The invention will now be described more closely with reference to theaccompanying' drawingsA which illustrate byway of examples which are byno means limitative, a preferred manner of carrying out the invention. 1

Figure 1 is a side view of the flat iron with the supporting legs of thedevice in inoperative position. Figure 2 is a top view of the flat ironwith the device as shown in Figure'l.

Figure 3 is an Iend View ofthel apparatus with the heating body removed.Y

Figure 4` is aside view of the at iron with the legs in supportingposition.

Figure 5 is an end view of the iron with the device as shown in Figure4. A

Figures 6, 7 and 8 are details of a modified locking mechanism.

Figure 9 is a further modification of the locking'mechanism.

The device consists of a heating body 20 and al handle 22 connectedthereto by a bracket 2|. Between said bracket and the heating body aframe 4 is squeezed on which frame two pairs of supporting legs I and 2Varepivoted at 9 and I0 respectively.A Each pair of legs is actuated bya coil spring I5, according to Figure 2, which spring tendsto shift thelegs into supporting position shown in Figure 4.

The supporting legs are of such a length that `in their supportingpositions, Figures 4 and 5, the underside of the `heating body will beata safe In the supporting po-` distance from the underlying material orbody 4l, without the arrangement being unstable. The legs are further ofsuch a shape that there is a considerable clearance between the heatingbody 20 and the legs I, 2, in their supporting as well 5 as in theirinoperative positions. Practically, the only thermal communicationbetween the legs and the heating body is thus through the pivots 9, I0and the irame ll. The greatest part of the insignificant heat thuscommunicated to the legs is radiated from the surface of the legs beforereaching the support 4l. In most cases it will therefore not benecessary to provide a heat insulation between the heating body 20-andthe frame 4. Furthermore, the legs can be made of 5 any suitablematerial, such as metal.

In order to increase the surface of radiation of the legs in relation totheir cross-sectional area, they can be made with a U-shapedcross-section.

The safety of this `device is so great that the 20 apparatus may be leftwith the legs in supporting position for hours or days with the fullheat on without danger.

The legs I and 2 are ypositively interconnected by means of a link 3mounted on pivots 3|, 32 25 and extending'l'aterally to the handle.

The pivot 3l is provided on the leg 2 close to the pivot I0 whereas thepivot 32 is provided on a projection 33 extending from the leg I on thethe o pposite side of the pivot 9. By this arrangement the legs can onlybe shifted simultaneously and in mutually opposite directions, as shownin Figures 1 and 4. On the frame 0 stop abutments 25 and 26 (see Figures1 and 4) are disposed which abutments engage specially designed upperparts 35 34, 35`of the legs I and 2 when same are in their supportingposition.

If an exterior force tends to displace the iron forwards or backwardsthe one pair of, legs will tend to shift to inoperative position onaccount of friction exerted by the support 4l. This tendency is,however, entirely compensated by the fact, that the other pair of legs,which is positively connected with the rst pair of legs is forced tobear against its corresponding abutment and stay in position. The frameis integral with a projecting lug. A two-armed lever 6 is pivoted at abolt I I provided in the lug 5. The lower end of the lever is jointedlyconnected at 24 with the link 3. The upper end of the lever is providedwith a manually operable push member 8, preferably in the shape of aheat insulated button. Adjacent to the bolt I I, the lug 5 is providedwith a conical stud I3 which is axially displaceable between releasingand locking positions under the action of a coil spring (not shown)provided inside a casing I4 mounted on the lug 5. The spring tends tohold the stud I3 in locking position. The upper arm of the lever 6 isprovided with a slot I6 of such a shape that in the inoperative positionof the legs, shown in Fig. 1, the slot will be engaged and locked by thestud I3. This is at its opposite end provided with a button I2 which, ifpushed, shifts the stud to its releasing position in which the lever 6is free to move out of the position shown in Figure l.

The apparatus operates in the following manner:

When the operator wants to rest the iron, the button I2 is pushed inwhich releases the lever 6, the link 3, and the legs I, 2. The springsI5 then shift the legs automatically into supporting positions in whichthe parts 34, 35 engage the stop abutments 25, 26. The heating body 2Dis then held at a safe distance from the underlying material or body. Itshould be noted that the legs in their supporting positions, accordingto Figure 4, are slightly oblique. The object thereof is to make thehorizontal projections of the pivots 9, ID to fall inside a polygon, thecorners of which are formed by the supporting points 36 to 39.

If the arrangement of the device is such that the pivots 9, I0 falloutside the polygon defined by the supporting points 36 to 39, theweight of the apparatus will tend to tip the legs into inoperativeposition so that the hot iron will come into contact with the underlyingmaterial and thus do harm.

When the operator wants to use the iron again he presses the pushingmember 8 forward in the direction of the arrow in Figure 4 against theaction of the springs I5. Simultaneously, the two-armed lever 6 movesthe link 3 backwards, so that the legs I, 2, moving in mutually oppositedirections, shift to their inoperative positions in which they crosseach other and remain parallel to the flat side of the iron as is shownin Figures 1 and 2.

At the same time the slot I6 engages the conical stud I3 and moves thisrst from its locking position and then, when the lever 6 has reached itsfinal position corresponding to the inoperative position of the legs, awider portion of the slot I6 will allow the stud I3 to fall back intoits locking position under the action of the spring in the casing I4. Inthis position the lever 6, the link 3, and the legs I, 2 are locked intheir inoperative positions.

When the supporting legs are raised to their inoperative position, theyare entirely out of the way and do not, in any way, hinder the operator,or obstruct his view of the flat iron in guiding the same over the work.

' In Figures 6, '7 and 8 the locking device is slightly modied. Thetwo-armed lever 6 in Figure l is here substituted by a correspondinglever 4D having an aperture I9 instead of the slct I6. The lug 5 ofFigure l corresponds here to the lug 4I. This is provided with a hole inwhich a ball I'I is accommodated. The ball is actuated by a leaf springI8 mounted on the lug 4I and tending to push the ball into lockingposition in relation to the hole I9. The leaf spring may be substitutedby a coil spring of equivalent action. When the legs are shifted fromtheir supporting to their inoperative positions the lever 4I] swingsfrom the position shown in Figure 8 to its vertical position indicatedfrom the opposite side in Figure 6. At the end of this shifting movementthe ball I'I slides into the hole I9 and locks the lever 40,

the link 3, and the legs I, 2 against the action of the springs I5.

In the embodiment of the locking device shown in Figure 9 the lug 5 issubstituted by a lug 42 provided with a hook 43 guiding a spring 21. Atthe one end this is fastened at 'I and at the other end is bent like aknee 23, 46. This knee bears against a stud 44 projecting from a lever45 corresponding to the lever 6 in Figure l.

The operation of the device according to the embodiment shown in Figure9 is as follows: In this gure the parts take up positions correspondingto the supporting positions of the legs. During the shifting movement ofthe legs from their supporting to their inoperative positions, the lever45 is rotated in a clock-wise direction so that during a rst period theupperside of the stud 44 bears against and slides on the spring portion23. During this interval the spring power tends to restore the lever 45,the link 3, and the legs I, 2 to their supporting positions. During asecond period, after the stud 44 has passed the point of the knee 23,46, the underside of the stud 44 bears against and slides on the springportion 46. During this second period the spring action tends to shiftthe lever 45, the link 3, and the legs I, 2 to their inoperativepositions,

Provided the spring 21, 23, 46 has a sufficient power the springs I5 inFigure 2 may be omitted and the legs tend always to take up either theirinoperative or supporting positions. In this modification the button I2and the locking devices of Figures 1 to 8 are also superfluous.

Theabove described devices while extremely simple and of reasonable costto manufacture can be very easily applied to, and removed from any atiron of common type.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is:-

1; A flat iron comprising a handle, a heated body, a bracket uniting thehandle with the body, pairs of supporting legs pivoted on the bracketand shiftable between supporting and inoperative positions, a linkjointedly and positively connected with said supporting legs on reversesides of their pivots to ensure a shifting movement of the pairs of legsin mutually opposite directions, a manually operable push memberactuating said link to shift the legs and spring-actuated locking meanscooperating with said member to retain the same and the legs in one oftheir shifting positions.

2. A flat iron comprising a handle, a heated body, a bracket uniting thehandle with the body,

pairs of supporting legs pivoted on the bracket and shiftable betweensupporting and inoperative positions, a link jointedly and positivelyconnected with said supporting legs on reversed sides of their pivots toensure a shifting movement of the pairs of legs in mutually oppositedirections, a two-armed manually operable push lever pivoted on a partrigidly connected with said bracket and jointedly connected to said linkwith which to shift the legs and spring actuated locking meanscooperating with said lever to retain the same and the legsV in one oftheir shifting positions.

3. A flat iron comprising a handle, a heated body, a bracket uniting thehandle with the body, pairs of supporting legs pivoted on the bracketand shiftable between supporting and inoperative positions, a linkjointedly and positively connected with said supporting legs on reversesides of I5 their pivots to ensure a. shifting movement of the pairs oflegs in mutually opposite directions, a two-armed manually operable pushlever pivoted on a part rigidly connected with said bracket andjointedly connected with said link to shift the legs, a spring actuatedlocking stud col operating with said lever to retain this and the legsin one of their shifting positions.

4. A at iron comprising a handle, a heated body, a bracket uniting thehandle with the body, pairs of supporting legs pivoted on the bracketand shiftable between supporting and inoperative positions, a linkjointedly and positively connected with said supporting legs on reversesides of their pivots to ensure a shifting movement of the pairs of legsin mutually opposite directions, a twoarmed manually operable push leverpivoted on a part rigidly connected with said bracket and jointedlyconnected with `said link to shift the legs, and a spring actuated balldetent cooperating withsaid lever to retain this and the legs in one oftheir shifting positions.

5. A at iron comprising a handle, a heated body, a bracket uniting thehandle with the body, pairs of supporting -legs pivoted on the bracketand shiftable between supporting and inoperative positions, a linkjointedly and positively connected with said supporting legs on reversesides Vof their pivots to ensure a shifting movement of the pairs oflegs in mutually opposite directions, a two-armed manually operable pushlever pivoted on a part rigidly connected with said bracket andjointedly connected with said link toshift the legs, and a, resilientknee co-operating withy an abutment of said lever to hold this and thelegs in the one and in the other of their lshifted positions.

JHAN LANDBERG.

